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Temnodontosaurus ichthyosaur and prey, illustration

Data da imagem: 04/12/2018
Cod. da imagem: c0386469
Crédito: John Sibbick / Science Photo Library/ Science Photo Library/ Fotoarena

Direito Controlado


Data da imagem: 04/12/2018

Cod. da imagem: c0386469

Crédito: John Sibbick / Science Photo Library/ Science Photo Library/ Fotoarena

Temnodontosaurus ichthyosaur and prey, illustration. This large ichthyosaur (12 metres long) is feeding on a smaller ichthyosaur (Ichthyosaurus communis). Ichthyosaurs were marine reptiles that lived from 248 to 90 million years ago, during the Triassic, Jurassic and Cretaceous. They were carnivorous predators, and being streamlined and swift were extremely well adapted to their marine habitat. They inhabited an ecological niche that was similar to that of the present day porpoises (marine mammals). Temnodontosaurus ichthyosaurs existed around 200 to 175 million years ago in the Early Jurassic. For a colour version of this artwork, see C038/6468.

Editorial RM
Magpie and dinosaur foot, illustration

Data da imagem: 04/12/2018
Cod. da imagem: c0386472
Crédito: John Sibbick / Science Photo Library/ Science Photo Library/ Fotoarena

Direito Controlado


Data da imagem: 04/12/2018

Cod. da imagem: c0386472

Crédito: John Sibbick / Science Photo Library/ Science Photo Library/ Fotoarena

Magpie and dinosaur foot, conceptual illustration. The magpie is an example of modern birds, all of which evolved from feathered dinosaurs. The dinosaur foot shown here is that of a large theropod (the group that included dinosaurs such as Tyrannosaurus rex). Such dinosaurs were bipedal and had four toes (one backwards pointing), the same as modern birds. Birds are modern examples of extant (still-living) theropods, and have the same basic foot anatomy. The dinosaur shown here became extinct long before humans and modern birds evolved.

Editorial RM
Pi number wheel representation, illustration

Data da imagem: 03/12/2018
Cod. da imagem: c0384613
Crédito: Martin Krzywinski/ Science Photo Library/ Fotoarena

Direito Controlado


Data da imagem: 03/12/2018

Cod. da imagem: c0384613

Crédito: Martin Krzywinski/ Science Photo Library/ Fotoarena

Pi number wheel representation, illustration. 10,000 digits of Pi as a path traced by links between successive digits. Each digit is assigned a segment (0-9). For example, the sequence '14' is drawn as a link between segment 1 and segment 4. Pi (the sixteenth letter of the Greek alphabet) is the symbol used in mathematics to represent the constant of the ratio of the circumference of a circle to its diameter. It is a crucial element of periodic functions and is found in many formulae in trigonometry and geometry. The value of this ratio is approximately 3.14159. It has been calculated to over one trillion digits beyond its decimal point, though as an irrational and transcendental number it continues infinitely without repetition or pattern. For different versions of this image, see C038/4613 to C038/4615.

Editorial RM
Pi number wheel representation, illustration

Data da imagem: 03/12/2018
Cod. da imagem: c0384615
Crédito: Martin Krzywinski/ Science Photo Library/ Fotoarena

Direito Controlado


Data da imagem: 03/12/2018

Cod. da imagem: c0384615

Crédito: Martin Krzywinski/ Science Photo Library/ Fotoarena

Pi number wheel representation, illustration. 10,000 digits of Pi as a path traced by links between successive digits. Each digit is assigned a segment (0-9). For example, the sequence '14' is drawn as a link between segment 1 and segment 4. Pi (the sixteenth letter of the Greek alphabet) is the symbol used in mathematics to represent the constant of the ratio of the circumference of a circle to its diameter. It is a crucial element of periodic functions and is found in many formulae in trigonometry and geometry. The value of this ratio is approximately 3.14159. It has been calculated to over one trillion digits beyond its decimal point, though as an irrational and transcendental number it continues infinitely without repetition or pattern. For different versions of this image, see C038/4613 to C038/4615.

Editorial RM
Pi star chart representation, illustration

Data da imagem: 03/12/2018
Cod. da imagem: c0384616
Crédito: Martin Krzywinski/ Science Photo Library/ Fotoarena

Direito Controlado


Data da imagem: 03/12/2018

Cod. da imagem: c0384616

Crédito: Martin Krzywinski/ Science Photo Library/ Fotoarena

Pi star chart representation, illustration. The stars on this chart are a synthetic universe created from the first 12 million digits of Pi. Successive blocks of 12 digits were used to produce co-ordinates for stars and their brightness. The resulting distribution was manipulated to produce a universe-like appearance. This chart (Hammer-Aitoff elliptical projection) shows 40,000 stars and 80 imagined constellations (named for extinct animals and plants). Pi (the sixteenth letter of the Greek alphabet) is the symbol used in mathematics to represent the constant of the ratio of the circumference of a circle to its diameter. It is a crucial element of periodic functions and is found in many formulae in trigonometry and geometry. The value of this ratio is approximately 3.14159. It has been calculated to over one trillion digits beyond its decimal point, though as an irrational and transcendental number it continues infinitely without repetition or pattern.

Editorial RM
Pi star chart representation, illustration

Data da imagem: 03/12/2018
Cod. da imagem: c0384618
Crédito: Martin Krzywinski/ Science Photo Library/ Fotoarena

Direito Controlado


Data da imagem: 03/12/2018

Cod. da imagem: c0384618

Crédito: Martin Krzywinski/ Science Photo Library/ Fotoarena

Pi star chart representation, illustration. The stars on this chart are a synthetic universe created from the first 12 million digits of Pi. Successive blocks of 12 digits were used to produce co-ordinates for stars and their brightness. The resulting distribution was manipulated to produce a universe-like appearance. This chart (azimuthal equidistant projection) shows 40,000 stars and 80 constellations (named for extinct animals and plants). Pi (the sixteenth letter of the Greek alphabet) is the symbol used in mathematics to represent the constant of the ratio of the circumference of a circle to its diameter. It is a crucial element of periodic functions and is found in many formulae in trigonometry and geometry. The value of this ratio is approximately 3.14159. It has been calculated to over one trillion digits beyond its decimal point, though as an irrational and transcendental number it continues infinitely without repetition or pattern.

Editorial RM
Pi number spiral representation, illustration

Data da imagem: 03/12/2018
Cod. da imagem: c0384623
Crédito: Martin Krzywinski/ Science Photo Library/ Fotoarena

Direito Controlado


Data da imagem: 03/12/2018

Cod. da imagem: c0384623

Crédito: Martin Krzywinski/ Science Photo Library/ Fotoarena

Pi number spiral representation, illustration. 10,000 digits of Pi arranged in a spiral, with a tail. The first digit is at the start of the tail at top left. The last digit is in the centre of the spiral. Pi (the sixteenth letter of the Greek alphabet) is the symbol used in mathematics to represent the constant of the ratio of the circumference of a circle to its diameter. It is a crucial element of periodic functions and is found in many formulae in trigonometry and geometry. The value of this ratio is approximately 3.14159. It has been calculated to over one trillion digits beyond its decimal point, though as an irrational and transcendental number it continues infinitely without repetition or pattern.

Editorial RM
Pi frequency distribution representation, illustration

Data da imagem: 03/12/2018
Cod. da imagem: c0384626
Crédito: Martin Krzywinski/ Science Photo Library/ Fotoarena

Direito Controlado


Data da imagem: 03/12/2018

Cod. da imagem: c0384626

Crédito: Martin Krzywinski/ Science Photo Library/ Fotoarena

Pi frequency distribution representation, illustration. Frequency distribution of digits in Pi for the first 4,988 digits of Pi in groupings of 4. The layout is 29 columns and 43 rows. The first digit (3) is offset to the top left. For each grouping the number of times a digit was seen is proportional to the width of the ring. Pi (the sixteenth letter of the Greek alphabet) is the symbol used in mathematics to represent the constant of the ratio of the circumference of a circle to its diameter. It is a crucial element of periodic functions and is found in many formulae in trigonometry and geometry. The value of this ratio is approximately 3.14159. It has been calculated to over one trillion digits beyond its decimal point, though as an irrational and transcendental number it continues infinitely without repetition or pattern.

Editorial RM
Pi adjacent digits representation, illustration

Data da imagem: 03/12/2018
Cod. da imagem: c0384634
Crédito: Martin Krzywinski/ Science Photo Library/ Fotoarena

Direito Controlado


Data da imagem: 03/12/2018

Cod. da imagem: c0384634

Crédito: Martin Krzywinski/ Science Photo Library/ Fotoarena

Pi adjacent digits representation, illustration. Grid showing the connections between adjacent digits for the first 700 digits of Pi. Pi (the sixteenth letter of the Greek alphabet) is the symbol used in mathematics to represent the constant of the ratio of the circumference of a circle to its diameter. It is a crucial element of periodic functions and is found in many formulae in trigonometry and geometry. The value of this ratio is approximately 3.14159. It has been calculated to over one trillion digits beyond its decimal point, though as an irrational and transcendental number it continues infinitely without repetition or pattern. The image title (lower right) marks Pi Day (14 March, 3.14).

Editorial RM
Tuberculosis bacteria, illustration

Data da imagem: 03/12/2018
Cod. da imagem: f0212159
Crédito: Kateryna Kon/ Science Photo Library/ Fotoarena

Royalty Free


Data da imagem: 03/12/2018

Cod. da imagem: f0212159

Crédito: Kateryna Kon/ Science Photo Library/ Fotoarena

Tuberculosis bacteria. Computer illustration of Mycobacterium tuberculosis bacteria, the Gram-positive rod-shaped bacteria which cause the disease tuberculosis.

Criativa RF
Tuberculosis bacteria, illustration

Data da imagem: 03/12/2018
Cod. da imagem: f0212162
Crédito: Kateryna Kon/ Science Photo Library/ Fotoarena

Royalty Free


Data da imagem: 03/12/2018

Cod. da imagem: f0212162

Crédito: Kateryna Kon/ Science Photo Library/ Fotoarena

Tuberculosis bacteria. Computer illustration of Mycobacterium tuberculosis bacteria, the Gram-positive rod-shaped bacteria which cause the disease tuberculosis.

Criativa RF
Nerve cells, computer illustration

Data da imagem: 03/12/2018
Cod. da imagem: f0212170
Crédito: Kateryna Kon/ Science Photo Library/ Fotoarena

Royalty Free


Data da imagem: 03/12/2018

Cod. da imagem: f0212170

Crédito: Kateryna Kon/ Science Photo Library/ Fotoarena

Nerve cells. Computer illustration of nerve cells, or neurons.

Criativa RF
Nerve cells, computer illustration

Data da imagem: 03/12/2018
Cod. da imagem: f0212173
Crédito: Kateryna Kon/ Science Photo Library/ Fotoarena

Royalty Free


Data da imagem: 03/12/2018

Cod. da imagem: f0212173

Crédito: Kateryna Kon/ Science Photo Library/ Fotoarena

Nerve cells. Computer illustration of nerve cells, or neurons.

Criativa RF
Nerve cells, computer illustration

Data da imagem: 03/12/2018
Cod. da imagem: f0212174
Crédito: Kateryna Kon/ Science Photo Library/ Fotoarena

Royalty Free


Data da imagem: 03/12/2018

Cod. da imagem: f0212174

Crédito: Kateryna Kon/ Science Photo Library/ Fotoarena

Nerve cells. Computer illustration of nerve cells, or neurons.

Criativa RF
Nerve cells, computer illustration and micrograph

Data da imagem: 03/12/2018
Cod. da imagem: f0212178
Crédito: Kateryna Kon/ Science Photo Library/ Fotoarena

Royalty Free


Data da imagem: 03/12/2018

Cod. da imagem: f0212178

Crédito: Kateryna Kon/ Science Photo Library/ Fotoarena

Nerve cells. Computer illustration and light micrograph of nerve cells, or neurons.

Criativa RF
Nerve cells, computer illustration

Data da imagem: 03/12/2018
Cod. da imagem: f0212182
Crédito: Kateryna Kon/ Science Photo Library/ Fotoarena

Royalty Free


Data da imagem: 03/12/2018

Cod. da imagem: f0212182

Crédito: Kateryna Kon/ Science Photo Library/ Fotoarena

Nerve cells. Computer illustration of nerve cells, or neurons.

Criativa RF
Nerve cells, computer illustration

Data da imagem: 03/12/2018
Cod. da imagem: f0212184
Crédito: Kateryna Kon/ Science Photo Library/ Fotoarena

Royalty Free


Data da imagem: 03/12/2018

Cod. da imagem: f0212184

Crédito: Kateryna Kon/ Science Photo Library/ Fotoarena

Nerve cells. Computer illustration of nerve cells, or neurons.

Criativa RF
Phosphodiesterase snake venom molecule

Data da imagem: 03/12/2018
Cod. da imagem: f0212201
Crédito: Kateryna Kon/ Science Photo Library/ Fotoarena

Royalty Free


Data da imagem: 03/12/2018

Cod. da imagem: f0212201

Crédito: Kateryna Kon/ Science Photo Library/ Fotoarena

Molecular model of phosphodiesterase snake venom from the Taiwan cobra (Naja atra atra).

Criativa RF
Egg fertilisation, illustration

Data da imagem: 03/12/2018
Cod. da imagem: f0212218
Crédito: Kateryna Kon/ Science Photo Library/ Fotoarena

Royalty Free


Data da imagem: 03/12/2018

Cod. da imagem: f0212218

Crédito: Kateryna Kon/ Science Photo Library/ Fotoarena

Human ovum, or egg, surrounded by numerous spermatozoa, computer illustration. In fertilisation, only a single sperm may successfully penetrate the ovum to fuse with the female nucleus. Barriers to be overcome include layers of follicular cells surrounding the ovum (corona radiata) and an underlying glycoprotein membrane, the zona pellucida. The membrane is digested by enzymes released from the acrosome, a cap on the head of the sperm: subsequent rapid chemical changes in the zona pellucida prevent competing sperm from entering.

Criativa RF
Transfusion transmitted virus particles, illustration

Data da imagem: 03/12/2018
Cod. da imagem: f0212219
Crédito: Kateryna Kon/ Science Photo Library/ Fotoarena

Royalty Free


Data da imagem: 03/12/2018

Cod. da imagem: f0212219

Crédito: Kateryna Kon/ Science Photo Library/ Fotoarena

Transfusion transmitted virus (TTV) particles, computer illustration. This is a non-enveloped DNA (deoxyribonucleic acid) virus first identified in Japan in 1997. It has since been found to be near ubiquitous, causing chronic human infections, but is not associated with any disease.

Criativa RF
 
 
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